Michael Johnson still holds the world record in the 200 metres, 400 metres and 4 x 400 metres relay. He won five Olympic gold medals and was crowned world champion nine times. He is the only male sprint athlete in history to win both the 200 metres and 400 metres events at the same Olympics.

The 7th World Championships in Athletics, under the auspices of the International Association of Athletics Federations, were held at the Estadio Olímpico, Seville, Spain, between the August 20 and August 29. One of the main highlights of the games was the world record set in the 400 metres by Michael Johnson of the United States in a time of 43.18 seconds.

Congratulations to Wayde van Niekerk on his truly sensational performance to win gold and break the world record in the men's 400 metres at the Rio Olympics. #Rio2016 #ProudlySouthAfrican #EdenMeanderLifestyleCentre

Grover Klemmer, Jr. (1921 – 2015) While running for the University of California, he lettered in American football, basketball and track and field. He was called the "golden boy" for the Golden Bears. In 1941, he set the world record for the 400 metres, running 46.0 around a single turn at the University of Pennsylvania on June 29, 1941. Two weeks earlier, he anchored the Bears mile relay team to a world record in 3:09.4, edging out the USC team anchored by Hubie Kerns by 4 inches.

In 2007, Bear Grylls broke a new world record by flying a Parajet over the Himalayas, higher than Mount Everest. He took off from 4,400 metres, 8 miles south of the mountain; eventually going on to look down on the summit and coping with temperatures of -60°C ‪#‎FactsAboutBear‬